Improvement in shuttles for looms



` into a notch of the spindle d.

UNTTED STATES A TnNT GEORGE CROMP'ION, OF VORCESTER, MASSAQHUSETTS.

IMPROVEMENT IN SHUTTLES FOR LOOVIS.

Specification forming part of Letters Patent No. 96,676, dated November9, 1869.

To all whom, it may concern:

lBe it known that I, GEORGE GRoMProN, of the city and county ofVorcester and State of Massachusetts, have invented certain new anduseful Improvements in Cop-Shuttles; and I do hereby declare that thefollowing, viewed with the drawings, is a full, clear, and exactdescription thereof.

A-liigure l is a longitudinal section taken through the spindle-cop andthe mechanism connected therewith. Fig; 2 is a similar view with thespindle in its elevated position.

Fig. l is a sectional view of a shuttle.` The spindle a 1s pivoted on apin, b, and is retained in its horizontal position by a bar, c, ttingThis bar and notch are kept in contact by the angular lever c, fulcrumedat f by the pressure of the spiral spring h. The spindle is split, andthe upper portion terminates in an inclined elevation against astationary pin, Z, the action of which curves the upper portion, and isexpanded, and keeps the cop t' from sliding off the spindle. When it isdesirable to raise the spindle to remove the tube J and mount a new cop,the operator presses the angular piece e at k against the spring, whichreleases 'the bar c from the notch d in the spindle. rIhe elastic uppertongue of the spindle, by the pressure of its heel on the pin Z, causesthe spindle to par# tiall y rise, which is a convenient position fromwhich the operator can raise the spindle to its highest elevation andremove the cop-tube J, and mount a new cop. Without injury to the baseof the spindle, the pressure of the spindle to its original andhorizontal position -re-engages the bar c with the notch in the spindle,

` thus completely locking it, while at the same time the pressure of theheel of the upper split or tongue of the spindle, by its pressureagainst the pin Z, has produced a separation from the lower part of thespindle or' ellipse, and expanded so much in the core of the ,cop as tosecure it firmly thereon. y

It will be thus seen that in this shuttle a great desideratum is met,viz: the absolute security of the spindle .from rising to catch thewarp-threads, and the immovability of the cop on the spindle.

Having thus described my invention, what I claim, and wish to secure byLetters Patent, is-

The combination of a locking-device, substantially as described, with anexpansive split spindle and spindle-head,'for the purpose set forth.

GEO. CROMPTON. Witnesses:

J. A. WARE, FRANK A. HOWARD.

